Part of ICHN-Bages group looking at the ruined spa of La Puda in Montserrat, Esparreguera (Baix Llobregat), in 14-12-2013.
Thermal, sulfur containing water still springs in here. In the 2nd picture , a microbiological mat with blue algae or cyanophyceae grows on the steps at the exit of thermal water from the spa to the river Llobregat.
[photos Jordi Badia]
Further information in Notícies de la ICHN nr.111.